基于LQRI方法的蓄电池放电调节器控制策略  

Control strategy of battery discharge regulator based on LQRI method

作　　者：鲁伟[1] 张晓宇[1] 赵秋山[1] 张泰峰[1] 张伟[1] 

机构地区：[1]中国电子科技集团公司第十八研究所,天津300384

出　　处：《电源技术》2018年第1期108-110,共3页Chinese Journal of Power Sources

摘　　要：为提高卫星电源蓄电池放电调节器(BDR)的工作性能,基于带积分环节的线性二次型调节器(LQRI)设计方法提出了一种新型的BDR控制策略。首先根据BDR的工作机理,获得了系统的小信号数学模型,进而通过引入状态积分环节,实现了状态方程的扩维,最后通过定义二次型性能指标函数和加权矩阵,获得了一种新型的BDR状态反馈控制策略,有效消除了系统的稳态输出误差。仿真结果验证了所提控制策略的有效性。To improve the performance of the battery discharge regulator(BDR) of satellite power systems, a novel BDR control strategy was proposed based on the method of linear quadratic regulator integral action(LQRI). Based on the BDR working principle, the small-signal mathematic model was obtained. Then, the system state equation was dimensionally extended by adding two integrals of the state variables. Finally, the linear quadratic performance criterion and weighting matrix were defined, and a novel state feedback control strategy of the BDR was obtained,effectively canceling the system steady-state output error. The effectiveness of the proposed control strategy is verified by simulation results.

关 键 词：蓄电池放电调节器 线性二次型调节器 卫星电源 状态反馈 

分 类 号：TM91[电气工程—电力电子与电力传动]